Main Title |
Determination of molecular hydrogen sulfide / |
Author |
Hoover, Thomas B., ;
Lauch, Richard P.
|
CORP Author |
National Environmental Research Center, Cincinnati, Ohio. |
Publisher |
National Environmental Research Center, Office of Research and Development, U.S. Environmental Protection Agency, |
Year Published |
1975 |
Report Number |
EPA-660/4-75-001; EPA-ROAP-24ALE-03 |
Stock Number |
PB-242 824 |
OCLC Number |
01492879 |
Subjects |
Hydrogen sulfide ;
Water--Analysis ;
Water chemistry ;
Hydrogen sulphide
|
Additional Subjects |
Potentiometric analysis ;
Hydrogen sulfide ;
Water analysis ;
Water pollution detection ;
Dissolved gases ;
Chemical analysis ;
Gas analysis ;
Performance(Engineering) ;
Electrodes ;
Sparging ;
Membranes
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EJBD |
EPA 660-4-75-001 |
|
Headquarters Library/Washington,DC |
12/23/2014 |
ELBD ARCHIVE |
EPA 660-4-75-001 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
ELBD RPS |
EPA 660-4-75-001 |
repository copy |
AWBERC Library/Cincinnati,OH |
03/28/2018 |
ELBD |
EPA 660-4-75-001 |
|
AWBERC Library/Cincinnati,OH |
12/27/2018 |
NTIS |
PB-240 700 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
NTIS |
PB-242 824 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
vi, 39 pages : illustrations ; 27 cm. |
Abstract |
The gas sparging technique and a new gas-sensing electrode were evaluated for the determination of dissolved molecular hydrogen sulfide at environmentally significant concentrations in water. From the sparging experiments approximate coefficients were obtained for the distribution of hydrogen sulfide between nitrogen and distilled water, seawater, or municipal sewage effluent. In the latter medium the volatility of hydrogen sulfide was very much less than predicted from the pH-total sulfide relationship. The electrode, consisting of various semipermeable membranes, buffered electrolyte filling solution, silver-silver sulfide crystal sensor, and lanthanum fluoride internal reference electrode, gave a generally Nernstian response to more than 0.1 mg/l of molecular hydrogen sulfide. Various sources of the anomalous behavior were considered. The electrode is recommended for in situ measurements of molecular hydrogen sulfide at concentrations greater than 0.1 mg/l. More work is needed to make it useful at lower concentrations. |
Notes |
"Program element 1BA027; ROAP 16ADN, Task 38." Includes bibliographical references (pages 37-39). |